\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Switching Vote, IV - Routine (dummy), Germany \label {tab:Table1rtilongswnarrowtask3cog2and3}}
\begin{tabular}{l*{4}{c}}
\hline\hline
                &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
                &\multicolumn{1}{c}{+Demographic}&\multicolumn{1}{c}{+Offshoring}&\multicolumn{1}{c}{+Skill}&\multicolumn{1}{c}{All}\\
\hline
Switching Vote  &                  &                  &                  &                  \\
Routine         &    0.472\sym{*}  &    0.463\sym{*}  &    0.525\sym{**} &    0.576\sym{**} \\
                &  (0.241)         &  (0.240)         &  (0.241)         &  (0.234)         \\
Female          &   -1.122\sym{***}&   -1.086\sym{***}&   -1.145\sym{***}&   -1.258\sym{***}\\
                &  (0.236)         &  (0.235)         &  (0.244)         &  (0.260)         \\
Age             &    0.002         &    0.001         &    0.001         &    0.001         \\
                &  (0.008)         &  (0.008)         &  (0.008)         &  (0.008)         \\
Foreign born    &   -0.817         &   -0.664         &   -0.652         &   -0.668         \\
                &  (0.504)         &  (0.504)         &  (0.504)         &  (0.499)         \\
High-Skilled    &   -0.712\sym{**} &   -0.724\sym{**} &   -0.752\sym{**} &   -0.784\sym{**} \\
                &  (0.310)         &  (0.313)         &  (0.312)         &  (0.305)         \\
Offshorability  &                  &   -0.083         &   -0.008         &    0.153         \\
                &                  &  (0.217)         &  (0.227)         &  (0.322)         \\
Skill-Specificity&                  &                  &   -0.055         &   -0.047         \\
                &                  &                  &  (0.033)         &  (0.034)         \\
Task-Tech       &                  &                  &                  &   -0.086         \\
                &                  &                  &                  &  (0.303)         \\
Task-Inter      &                  &                  &                  &    0.334         \\
                &                  &                  &                  &  (0.383)         \\
Income          &      Yes         &      Yes         &      Yes         &      Yes         \\
Regional controls &       No         &      Yes         &      Yes         &      Yes         \\
\hline
Observations    &     8386         &     8386         &     8346         &     8334         \\
R$^2$           &    0.067         &    0.077         &    0.080         &    0.082         \\
AIC             &  6.1e+06         &  6.1e+06         &  6.0e+06         &  6.0e+06         \\
\hline\hline
\multicolumn{5}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{5}{l}{\footnotesize \sym{*} \(p<0.1\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular}
\end{table}
